1. An established path or course that is followed consistently and predictably, typically used in transportation, delivery, or scheduled services
The bus follows a regular route through the city every day.
O ônibus segue a rota regular pela cidade todos os dias.
2. A fixed schedule or itinerary that repeats on a routine basis
The airline maintains a regular route between São Paulo and Rio de Janeiro.
A companhia aérea mantém a rota regular entre São Paulo e Rio de Janeiro.